Appears On
A 3D bar chart with solid bars, isometric projection, and a painter's-algorithm draw order renders a cosine-based mathematical surface in vivid color.
A two-mode checkbook reconciliation program prints formatted ledger columns on screen and paper simultaneously, using integer penny arithmetic to sidestep floating-point rounding errors.
A compact machine code utility that prints the text in a REM statement as large text.
A compact 29-byte machine code routine patches the system to deliver bold text output, loaded and launched by a minimal BASIC bootstrap program.
Draw an 8×8 character pixel-by-pixel, then watch the program calculate the exact decimal byte values and redefine a custom graphic automatically.
A fully animated analog clock face with trigonometrically placed hour markers, sweeping hands, and an audible tick rendered entirely in BASIC.
This clever BASIC utility lets you replace the displayed text of numeric literals in any program while leaving their true floating-point values completely intact.
An interactive Bézier curve designer lets you place up to 20 control points and watch the mathematically computed smooth curve plotted on screen.
Enter a set of control points and watch this program compute and plot a smooth Bézier curve, with an optional wireframe overlay showing the control polygon.
A hand-drawn color map of North America sets the scene for a state-capitals quiz that reads your answer and tells you where you went wrong.
Track the OSCAR 10 amateur satellite in real time with this BASIC orbital propagator that plots world maps, computes azimuth and elevation, and displays phase and range data.
A faithful recreation of the Olympic fanfare complete with five-ring graphics and a custom animated character that tracks each note as the melody plays.
An interactive Spanish tutor automatically conjugates any regular verb you enter and teaches suffixes, opposites, and question words with scrolling example sentences.
Can you catch a randomly wandering target using just four keys before it slips away again in this quick block-graphics chase game?
A 173-byte machine code utility reveals every BASIC variable currently in memory — just call it with RANDOMIZE USR to inspect your program's state.
A video tape catalog manager stores up to 100 titles with searchable subject and tape-number fields, complete with a Shell sort and tape-based data persistence.
Enter your weekly recording schedule day by day and print a neatly formatted timetable complete with channel numbers and program names.
